秒转分钟工具方法

    /**
     * 秒转分钟
     * @param second
     * @param bitNum
     * @return
     */
    public static Double second2Minute(BigDecimal second, int bitNum) {
        if (null != second) {
            Double minute = second.doubleValue() / 60;
            BigDecimal bigDecimal = new BigDecimal(minute).setScale(bitNum, RoundingMode.HALF_UP);
            Double newMinute = bigDecimal.doubleValue();
            return newMinute;
        } else {
            return null;
        }
    }